editing README files

@@ -6,5 +6,5 @@ http://code.google.com/p/route-me/
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-There are two subdirectories - MapView and Proj4. Proj4 is a support class used to do map projections. The MapView project contains both the route-me map library and a simple example application which embeds the map. Refer to the embedding guide for details: http://code.google.com/p/route-me/wiki/EmbedingGuide
+There are three subdirectories - MapView, Proj4, and samples. Proj4 is a support class used to do map projections. The MapView project contains both the route-me map library and a simple example application which embeds the map. Refer to the embedding guide for details: http://code.google.com/p/route-me/wiki/EmbedingGuide. "samples" contains some ready-to-build projects which you may use as starting points for your own applications.
 

+This "samples" directory contains both sample code and engineering
+test cases.
+
+SampleMap is a straightforward example of the Route-me library in
+action, using the Open Street Map project's map tiles, and retrieving
+data from their server. Developers: please don't check in any code
+that breaks this project.
+
+MapTestbed is similar to SampleMap, but is meant as a starting point
+for writing test cases. Developers are encouraged to clone the
+MapTestbed project when testing new features or when trying to
+duplicate bugs. If you make changes to MapTestbed to exercise a new
+Route-me features, please check in your revised version under a new
+name.
+
+
+